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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt mon sep 15 2025

for waters beyond five nautical miles of shore on lake ontario

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a large 30.3 inch high will slowly shift southeast 
across southern quebec into new england by late tuesday. the high 
will then drift slowly east off the new england coast wednesday into 
wednesday night while remaining ridged west over the lake. a cold 
front will cross the lake thursday night, with another large area of 
high pressure over western ontario building southeast across the 
lower great lakes friday and saturday.


loz062-160900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt mon sep 15 2025

.overnight...east winds 5 to 10 knots. waves 1 foot or
less. 
.tuesday...east winds 5 to 10 knots. patchy fog in the morning.
waves 1 to 2 feet. 
.tuesday night...east winds 10 knots or less. waves 1 foot or
less. 
.wednesday...east winds less than 10 knots becoming northeast.
waves 1 foot or less. 
.wednesday night...east winds less than 10 knots becoming west.
waves 1 foot or less. 
.thursday...west winds 5 to 10 knots becoming north. waves 2 feet
or less. 
.friday...northeast winds 15 to 20 knots becoming east. waves
1 to 3 feet building to 3 to 5 feet. 
.saturday...east winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 5 feet subsiding to 2 to 4 feet. 

$$

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open lake forecast for lake huron
national weather service detroit/pontiac mi
947 pm edt mon sep 15 2025

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...high pressure, 30.30 inches, holds over the eastern
great lakes through the middle of the week, which will continue
to support dry weather and light winds. a second high pressure
system will then drop in from the central canadian provinces,
centering over eastern ontario by the end of the week.


lhz361-362-161000-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
947 pm edt mon sep 15 2025

.rest of tonight...east winds 5 to 10 knots becoming light and 
variable. waves 2 feet or less. 
.tuesday...light and variable winds. waves 2 feet or less. 
.tuesday night...light and variable winds. waves 2 feet or less. 
.wednesday...light and variable winds. waves 2 feet or less. 
.wednesday night...light and variable winds. waves 2 feet or
less. 
.thursday...light and variable winds becoming northwest 5 to
10 knots late in the morning...then becoming northeast 10 to
15 knots late in the evening. waves 2 feet or less. 
.friday...northeast winds 15 to 20 knots becoming east 5 to
10 knots early in the evening...then increasing to 10 to 15 knots
in the late evening and early morning. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.saturday...east winds 15 to 20 knots decreasing to 10 to
15 knots until early morning. waves 3 to 5 feet. 


$$

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open lake forecast for lake huron
national weather service detroit/pontiac mi
947 pm edt mon sep 15 2025

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...high pressure, 30.30 inches, holds over the eastern
great lakes through the middle of the week, which will continue
to support dry weather and light winds. a second high pressure
system will then drop in from the central canadian provinces,
centering over eastern ontario by the end of the week.


lhz363-462>464-161000-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
947 pm edt mon sep 15 2025

.rest of tonight...east winds 5 to 10 knots. waves 2 feet or
less. 
.tuesday...light and variable winds. waves 2 feet or less. 
.tuesday night...north winds 5 to 10 knots early in the evening
becoming light and variable. waves 2 feet or less. 
.wednesday...light and variable winds. waves 2 feet or less. 
.wednesday night...light and variable winds. waves 2 feet or
less. 
.thursday...light and variable winds becoming west 5 to 10 knots
late in the morning...then veering to the north late in the
afternoon. waves 2 feet or less. 
.friday...northeast winds 15 to 20 knots. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.saturday...east winds 15 to 20 knots decreasing to 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet in the late
evening and early morning. 


$$